[vtkusers] labelling iso-lines

[Matheus Viana]

How can I perform the distance transform over a large ImageData by using
vtkEclideanDistance?

I'm getting bad alloc error for imagedata larger than 370^3 pixels.

Here is my current code:

vtkImageData *DistanceTransform(vtkImageData *ImageData) {
        vtkImageEuclideanDistance *Transform =
vtkImageEuclideanDistance::New();
        Transform -> SetInput(ImageData);
        Transform -> ConsiderAnisotropyOff();
        Transform -> SetAlgorithmToSaitoCached();
        Transform -> InitializeOn();
        Transform -> Update();

        vtkImageData *DImageData = vtkImageData::New();
        DImageData -> DeepCopy(Transform -> GetOutput());
        DImageData -> SetScalarTypeToDouble();
        DImageData -> Update();

        Transform -> Delete();
        ImageData -> Delete();

        return DImageData;
}

Thanks,
Matheus Viana
Computational Physics
IFSC-USP


2010/5/18 rashedk <rashed.vtk at googlemail.com>

>
> Hi all,
>
> vtkContourFilter can draw contours on a dataset, however, is it possible to
> label/annotate these contours? I looked at vtkLabeledDataMapper but it only
> seems to label points, cells, etc.
>
> Rashed.
> --
> View this message in context:
> http://old.nabble.com/labelling-iso-lines-tp28597889p28597889.html
> Sent from the VTK - Users mailing list archive at Nabble.com.
>
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